28605555

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6421}}^1$

素因数の和:6449

約数の個数: 40

約数和(自身を含む): 55948464

約数和(自身を除く): 27342909

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455, 6421, 19263, 32105, 57789, 70631, 96315, 173367, 211893, 288945, 353155, 520101, 635679, 866835, 1059465, 1907037, 2600505, 3178395, 5721111, 9535185, 28605555]

約数ペア:

[(1, 28605555), (3, 9535185), (5, 5721111), (9, 3178395), (11, 2600505), (15, 1907037), (27, 1059465), (33, 866835), (45, 635679), (55, 520101), (81, 353155), (99, 288945), (135, 211893), (165, 173367), (297, 96315), (405, 70631), (495, 57789), (891, 32105), (1485, 19263), (4455, 6421)]